Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Ranua Kk. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Ranua Kk, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
7.0 C (44.6 F)
-42.7 C (-44.9 F)
n/a
n/a
Feb
5.6 C (42.1 F)
-42.3 C (-44.1 F)
n/a
n/a
Mar
9.4 C (48.9 F)
-37.2 C (-35.0 F)
n/a
n/a
Apr
18.0 C (64.4 F)
-27.6 C (-17.7 F)
n/a
n/a
May
27.0 C (80.6 F)
-15.6 C (3.9 F)
n/a
n/a
Jun
30.7 C (87.3 F)
-2.1 C (28.2 F)
n/a
n/a
Jul
32.0 C (89.6 F)
0.2 C (32.4 F)
n/a
n/a
Aug
28.8 C (83.8 F)
-3.6 C (25.5 F)
n/a
n/a
Sep
23.4 C (74.1 F)
-10.5 C (13.1 F)
n/a
n/a
Oct
13.4 C (56.1 F)
-30.0 C (-22.0 F)
n/a
n/a
Nov
9.4 C (48.9 F)
-33.8 C (-28.8 F)
n/a
n/a
Dec
5.6 C (42.1 F)
-38.0 C (-36.4 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Ranua Kk still stand. 1966 holds the most, with 58.
Standing records at Ranua Kk by the year they were set
Year set
Standing records
1963
37
1964
25
1965
32
1966
58
1967
39
1968
49
1969
15
1970
20
1971
45
1972
44
1973
38
1974
23
1975
47
1976
29
1977
48
1978
53
1979
31
1980
31
1981
34
1982
27
1983
29
1984
23
1985
33
1986
29
1987
30
1988
27
1989
35
1990
28
1991
19
1992
45
1993
20
1994
13
1995
25
1996
17
1997
30
1998
20
1999
24
2000
36
2001
33
2002
31
2003
35
2004
21
2005
46
2006
36
2007
38
2008
16
All-Time Record Progression
2 new records
2 all-time records were set at Ranua Kk between 16 June 2001 and 29 July 2003. Each dot is a new record.
When Ranua Kk set new all-time records
Date
Kind
Detail
2001-06-16
Record daily precipitation
Record daily precipitation 50.1 mm (2.0 in)
2003-07-29
Record high minimum temperature
Record high minimum temperature 19.5 C (67.1 F)
Wettest Day of Each Month
Jun: 50.1 mm (2.0 in)
The wettest day on record for each calendar month at Ranua Kk. The most was 50.1 mm (2.0 in) on 16 June 2001.
Record daily precipitation for each month at Ranua Kk
Month
Record daily precipitation (mm)
Date
Jan
16.2 mm (0.6 in)
12 January 1984
Feb
13.9 mm (0.5 in)
27 February 2000
Mar
20.1 mm (0.8 in)
17 March 1977
Apr
22.7 mm (0.9 in)
9 April 2001
May
31.3 mm (1.2 in)
16 May 2002
Jun
50.1 mm (2.0 in)
16 June 2001
Jul
32.8 mm (1.3 in)
18 July 1989
Aug
44.6 mm (1.8 in)
6 August 1986
Sep
33.5 mm (1.3 in)
10 September 1998
Oct
30.2 mm (1.2 in)
5 October 1983
Nov
22.6 mm (0.9 in)
18 November 1981
Dec
17.1 mm (0.7 in)
2 December 2000
Period of Record Coverage
1963 to 2008
Complete yearUnder 90 percent of days
46 years of record at Ranua Kk, 1963 to 2008. 1 years have data for under 90 percent of days and are left out of rankings: 2008.
Cooler than the station meanWarmer than the station mean
One stripe for each of 44 complete years at Ranua Kk, 1963 to 2007. Blue stripes are years cooler than the station's own mean of 0.4 C (32.7 F); red stripes are warmer. The coolest year was 1985, at -2.0 C (28.4 F), and the warmest was 2005, at 2.5 C (36.5 F). The strongest colour marks a difference of 2.5 C (4.5 F).
Annual mean temperature at Ranua Kk as warming stripes, 1963 to 2007
Year
Annual mean temperature
Difference from the station mean
1963
-0.1 C
-0.52 C
1964
0.7 C
+0.34 C
1965
-0.6 C
-0.95 C
1966
-1.6 C
-1.95 C
1967
0.5 C
+0.13 C
1968
-1.4 C
-1.83 C
1969
-0.9 C
-1.29 C
1970
-0.2 C
-0.59 C
1971
-1.4 C
-1.76 C
1972
1.5 C
+1.10 C
1973
-0.2 C
-0.55 C
1974
2.2 C
+1.76 C
1975
0.8 C
+0.42 C
1976
-1.2 C
-1.56 C
1977
-0.5 C
-0.92 C
1978
-1.6 C
-2.03 C
1979
0.1 C
-0.33 C
1980
-0.6 C
-1.00 C
1981
-0.9 C
-1.27 C
1982
0.4 C
-0.02 C
1983
0.4 C
+0.02 C
1984
1.2 C
+0.84 C
1985
-2.0 C
-2.40 C
1986
-0.1 C
-0.52 C
1987
-1.3 C
-1.66 C
1988
1.0 C
+0.58 C
1989
2.5 C
+2.08 C
1990
1.7 C
+1.30 C
1991
1.0 C
+0.61 C
1992
1.4 C
+0.98 C
1993
0.9 C
+0.46 C
1994
0.8 C
+0.43 C
1996
0.7 C
+0.33 C
1997
0.6 C
+0.19 C
1998
-0.3 C
-0.67 C
1999
0.9 C
+0.50 C
2000
2.4 C
+1.99 C
2001
0.8 C
+0.40 C
2002
0.7 C
+0.34 C
2003
1.4 C
+0.97 C
2004
1.6 C
+1.23 C
2005
2.5 C
+2.09 C
2006
1.7 C
+1.27 C
2007
2.0 C
+1.63 C
The annual mean temperature here has risen by 0.5 C (0.3 to 0.7) per decade over 1963 to 2007. In Fahrenheit: 0.9 F (0.5 to 1.3) per decade. The slope is a straight line fitted to 44 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Ranua Kk
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.5 C (0.3 to 0.7) per decade
0.9 F (0.5 to 1.3) per decade
1963 to 2007
44
Rise
Mean daily maximum
0.4 C (0.1 to 0.6) per decade
0.6 F (0.3 to 1.0) per decade
1963 to 2007
44
Rise
Mean daily minimum
0.7 C (0.4 to 0.9) per decade
1.2 F (0.7 to 1.7) per decade
1963 to 2007
44
Rise
A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.
Extremes by Year
1963 to 2008
Yearly extremes at Ranua Kk: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
32.0 C (89.6 F)
1970
27.5 C (81.4 F)
46
Coldest night (TNn)
-42.7 C (-44.9 F)
1967
-34.2 C (-29.6 F)
46
Wettest day (Rx1day)
50.1 mm (2.0 in)
2001
27.7 mm (1.1 in)
46
Wettest five days (Rx5day)
94.6 mm (3.7 in)
1980
47.2 mm (1.9 in)
46
Longest dry spell (CDD)
41 days
1978
19 days
46
Hottest day (TXx)
The hottest day of the year at Ranua Kk, 1963 to 2008. The record is 32.0 C (89.6 F) in 1970, marked on the chart; the median year is 27.5 C (81.4 F).
Hottest day (TXx) at Ranua Kk by year
Year
Hottest day (TXx)
1963
28.6 C (83.5 F)
1964
27.2 C (81.0 F)
1965
25.6 C (78.1 F)
1966
27.4 C (81.3 F)
1967
28.8 C (83.8 F)
1968
27.7 C (81.9 F)
1969
27.5 C (81.5 F)
1970
32.0 C (89.6 F)
1971
27.0 C (80.6 F)
1972
30.4 C (86.7 F)
1973
28.0 C (82.4 F)
1974
30.7 C (87.3 F)
1975
27.2 C (81.0 F)
1976
26.1 C (79.0 F)
1977
27.2 C (81.0 F)
1978
26.5 C (79.7 F)
1979
26.0 C (78.8 F)
1980
28.3 C (82.9 F)
1981
28.0 C (82.4 F)
1982
26.7 C (80.1 F)
1983
26.7 C (80.1 F)
1984
26.3 C (79.3 F)
1985
27.5 C (81.5 F)
1986
27.2 C (81.0 F)
1987
26.3 C (79.3 F)
1988
31.5 C (88.7 F)
1989
28.0 C (82.4 F)
1990
28.0 C (82.4 F)
1991
26.0 C (78.8 F)
1992
27.0 C (80.6 F)
1993
25.4 C (77.7 F)
1994
29.7 C (85.5 F)
1995
26.2 C (79.2 F)
1996
24.0 C (75.2 F)
1997
29.4 C (84.9 F)
1998
25.0 C (77.0 F)
1999
30.1 C (86.2 F)
2000
30.6 C (87.1 F)
2001
27.9 C (82.2 F)
2002
27.1 C (80.8 F)
2003
29.3 C (84.7 F)
2004
24.6 C (76.3 F)
2005
27.9 C (82.2 F)
2006
27.7 C (81.9 F)
2007
27.5 C (81.5 F)
2008
25.2 C (77.4 F)
Coldest night (TNn)
The coldest night of the year at Ranua Kk, 1963 to 2008. The record is -42.7 C (-44.9 F) in 1967, marked on the chart; the median year is -34.2 C (-29.6 F).
Coldest night (TNn) at Ranua Kk by year
Year
Coldest night (TNn)
1963
-38.0 C (-36.4 F)
1964
-34.8 C (-30.6 F)
1965
-33.7 C (-28.7 F)
1966
-42.3 C (-44.1 F)
1967
-42.7 C (-44.9 F)
1968
-39.6 C (-39.3 F)
1969
-37.2 C (-35.0 F)
1970
-31.6 C (-24.9 F)
1971
-37.2 C (-35.0 F)
1972
-32.5 C (-26.5 F)
1973
-33.7 C (-28.7 F)
1974
-30.9 C (-23.6 F)
1975
-34.1 C (-29.4 F)
1976
-36.9 C (-34.4 F)
1977
-40.4 C (-40.7 F)
1978
-38.0 C (-36.4 F)
1979
-38.8 C (-37.8 F)
1980
-37.4 C (-35.3 F)
1981
-36.7 C (-34.1 F)
1982
-35.8 C (-32.4 F)
1983
-34.0 C (-29.2 F)
1984
-31.1 C (-24.0 F)
1985
-42.0 C (-43.6 F)
1986
-35.0 C (-31.0 F)
1987
-35.9 C (-32.6 F)
1988
-31.4 C (-24.5 F)
1989
-28.6 C (-19.5 F)
1990
-28.5 C (-19.3 F)
1991
-30.4 C (-22.7 F)
1992
-25.9 C (-14.6 F)
1993
-27.2 C (-17.0 F)
1994
-31.3 C (-24.3 F)
1995
-32.6 C (-26.7 F)
1996
-29.3 C (-20.7 F)
1997
-33.5 C (-28.3 F)
1998
-35.0 C (-31.0 F)
1999
-42.3 C (-44.1 F)
2000
-29.5 C (-21.1 F)
2001
-35.0 C (-31.0 F)
2002
-35.0 C (-31.0 F)
2003
-37.3 C (-35.1 F)
2004
-31.4 C (-24.5 F)
2005
-29.7 C (-21.5 F)
2006
-33.0 C (-27.4 F)
2007
-34.3 C (-29.7 F)
2008
-28.5 C (-19.3 F)
Wettest day (Rx1day)
The wettest day of the year at Ranua Kk, 1963 to 2008. The record is 50.1 mm (2.0 in) in 2001, marked on the chart; the median year is 27.7 mm (1.1 in).
Wettest day (Rx1day) at Ranua Kk by year
Year
Wettest day (Rx1day)
1963
23.3 mm (0.9 in)
1964
16.4 mm (0.6 in)
1965
21.5 mm (0.8 in)
1966
32.8 mm (1.3 in)
1967
23.8 mm (0.9 in)
1968
28.8 mm (1.1 in)
1969
11.9 mm (0.5 in)
1970
31.9 mm (1.3 in)
1971
28.6 mm (1.1 in)
1972
30.7 mm (1.2 in)
1973
21.9 mm (0.9 in)
1974
19.7 mm (0.8 in)
1975
33.2 mm (1.3 in)
1976
18.5 mm (0.7 in)
1977
25.4 mm (1.0 in)
1978
34.3 mm (1.4 in)
1979
19.0 mm (0.7 in)
1980
29.9 mm (1.2 in)
1981
31.7 mm (1.2 in)
1982
17.8 mm (0.7 in)
1983
39.5 mm (1.6 in)
1984
44.0 mm (1.7 in)
1985
17.8 mm (0.7 in)
1986
44.6 mm (1.8 in)
1987
30.6 mm (1.2 in)
1988
17.5 mm (0.7 in)
1989
32.8 mm (1.3 in)
1990
26.4 mm (1.0 in)
1991
33.3 mm (1.3 in)
1992
32.8 mm (1.3 in)
1993
20.7 mm (0.8 in)
1994
18.8 mm (0.7 in)
1995
27.8 mm (1.1 in)
1996
24.0 mm (0.9 in)
1997
27.2 mm (1.1 in)
1998
44.0 mm (1.7 in)
1999
28.0 mm (1.1 in)
2000
22.6 mm (0.9 in)
2001
50.1 mm (2.0 in)
2002
31.3 mm (1.2 in)
2003
31.7 mm (1.2 in)
2004
27.5 mm (1.1 in)
2005
28.3 mm (1.1 in)
2006
21.0 mm (0.8 in)
2007
20.1 mm (0.8 in)
2008
17.2 mm (0.7 in)
Wettest five days (Rx5day)
The wettest five days of the year at Ranua Kk, 1963 to 2008. The record is 94.6 mm (3.7 in) in 1980, marked on the chart; the median year is 47.2 mm (1.9 in).
Wettest five days (Rx5day) at Ranua Kk by year
Year
Wettest five days (Rx5day)
1963
42.6 mm (1.7 in)
1964
35.1 mm (1.4 in)
1965
37.0 mm (1.5 in)
1966
52.6 mm (2.1 in)
1967
47.2 mm (1.9 in)
1968
43.1 mm (1.7 in)
1969
31.2 mm (1.2 in)
1970
60.0 mm (2.4 in)
1971
36.1 mm (1.4 in)
1972
77.3 mm (3.0 in)
1973
33.0 mm (1.3 in)
1974
47.3 mm (1.9 in)
1975
41.9 mm (1.6 in)
1976
44.8 mm (1.8 in)
1977
55.8 mm (2.2 in)
1978
55.0 mm (2.2 in)
1979
36.3 mm (1.4 in)
1980
94.6 mm (3.7 in)
1981
63.8 mm (2.5 in)
1982
35.0 mm (1.4 in)
1983
45.2 mm (1.8 in)
1984
72.1 mm (2.8 in)
1985
47.1 mm (1.9 in)
1986
59.8 mm (2.4 in)
1987
65.5 mm (2.6 in)
1988
40.2 mm (1.6 in)
1989
84.1 mm (3.3 in)
1990
40.7 mm (1.6 in)
1991
56.3 mm (2.2 in)
1992
69.9 mm (2.8 in)
1993
29.1 mm (1.1 in)
1994
41.8 mm (1.6 in)
1995
34.8 mm (1.4 in)
1996
41.0 mm (1.6 in)
1997
35.2 mm (1.4 in)
1998
85.2 mm (3.4 in)
1999
63.6 mm (2.5 in)
2000
48.3 mm (1.9 in)
2001
60.0 mm (2.4 in)
2002
47.6 mm (1.9 in)
2003
55.4 mm (2.2 in)
2004
40.9 mm (1.6 in)
2005
52.8 mm (2.1 in)
2006
51.5 mm (2.0 in)
2007
41.0 mm (1.6 in)
2008
29.4 mm (1.2 in)
Longest dry spell (CDD)
The longest dry spell of the year at Ranua Kk, 1963 to 2008. The record is 41 days in 1978, marked on the chart; the median year is 19 days.
Longest dry spell (CDD) at Ranua Kk by year
Year
Longest dry spell (CDD)
1963
31 days
1964
40 days
1965
19 days
1966
19 days
1967
23 days
1968
17 days
1969
25 days
1970
23 days
1971
18 days
1972
17 days
1973
16 days
1974
23 days
1975
14 days
1976
21 days
1977
13 days
1978
41 days
1979
12 days
1980
27 days
1981
17 days
1982
15 days
1983
27 days
1984
13 days
1985
26 days
1986
19 days
1987
22 days
1988
15 days
1989
13 days
1990
28 days
1991
16 days
1992
25 days
1993
19 days
1994
25 days
1995
19 days
1996
24 days
1997
16 days
1998
19 days
1999
18 days
2000
16 days
2001
19 days
2002
19 days
2003
14 days
2004
19 days
2005
22 days
2006
23 days
2007
17 days
2008
12 days
Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.
Frost Dates and Growing Season
44 years with a frost
Across 44 years with a frost, the median last spring frost at Ranua Kk falls on 31 May and the median first autumn frost on 4 September, which leaves a median of 98 days between them.
Fitted over all years, the growing season changes by +0.8 days per decade at this station.
Frost dates and growing season at Ranua Kk
Measure
Median, all years
Earliest period
Recent period (1977 to 2007)
Recent against earliest
Fitted trend
Last spring frost
31 May
n/a
30 May
n/a
-1.3 days per decade
First autumn frost
4 September
n/a
5 September
n/a
-0.5 days per decade
Growing days
98 days
n/a
99 days
n/a
+0.8 days per decade
A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.
Rainfall Return Levels
45 years, 1963 to 2007
A day with at least 26.7 mm (1.1 in) of rain is expected about once in 2 years. A day with at least 50.9 mm (2.0 in) of rain is expected about once in 100 years.
Rainfall return levels at Ranua Kk: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
26.7 mm (1.1 in)
5 years
34.2 mm (1.3 in)
10 years
38.7 mm (1.5 in)
25 years
44.0 mm (1.7 in)
50 years
47.6 mm (1.9 in)
Longer than the 45 years of record
100 years
50.9 mm (2.0 in)
Longer than the 45 years of record
The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 45 years of values from 1963 to 2007.
A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.
The largest wettest-day totals in the fit: 50.1 mm (2.0 in) in 2001; 44.6 mm (1.8 in) in 1986; 44.0 mm (1.7 in) in 1984.
Station Changes
1 suspected
One change was suspected in the annual mean temperature of Ranua Kk, at 1980. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1980 ran 0.2 C (0.3 F) higher than in the years before (possible change).
Suspected changes in the annual mean temperature at Ranua Kk, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1980
+0.2
+0.3
possible
5
Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.
Download the Data
Data for Ranua Kk standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Ranua Kk threshold days by year: CSV or JSON. Field meanings are on the data page.
Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-15 (15 October 2026). Records are computed by this site and are not official.